One (non-goodhart resistent) way could be to use some kind of Page Rank method based on the tags that users comment and post on. Eg. People Rank high in AI posts, if their comments and AI posts were upvoted by other people with the same Expertise.
One (non-goodhart resistent) way could be to use some kind of Page Rank method based on the tags that users comment and post on. Eg. People Rank high in AI posts, if their comments and AI posts were upvoted by other people with the same Expertise.